Fund of Mutual Financial Aid of the credit union can be extended by sponsorship contributions from businesses, organizations, including on a returnable basis. Some credit unions are closed, serving only their members. However, the more and more popularitywin cooperatives of open type. Among the U.S. credit unions, there are three groups that differ in terms of assets, shareholders, and business services. Credit unions of the open type are still controlled by their members, but at the same time provide services to people who are not its members (external customers). As of the January 1, 2012 the national associations and confederations unite more than 196 million members participating in the 51,013 credit unions in 100 countries. In some cases, the initiators of credit unions can be trade unions, associations such as social support centers and others. Standards by which credit unions build their work do not coincide with the standards and regulations of consumer cooperation of the usual type. Unlike banks, in order to use the services of a credit union, you have to become its member, having written an application and having paid thus shares and membership fee.